United States$5,000,000+
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Karen Peterson
5
Reliable 3G router that performs consistently well. Setup is easy, and it has been running smoothly for our remote teams.
C1921-3G-S-K9
Cisco 1900 Series Wireless WAN Bundle C1921-3G-S-K9
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Name:
C1921-3G-S-K9
- Description:
- Cisco 1900 Series Wireless WAN Bundle C1921-3G-S-K9
- Rating:
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- Brand:
- Cisco
- GTIN:
- 882658427060
- Condition:
- Warranty:
- 3
- List Price:
$1,995.00
- Price:
$1,038.0048% off
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C1921-3G-S-K9 Overview
C1921-3G-S-K9 is a fixed, enterprise-class integrated services router engineered for branch offices requiring versatile connectivity and high-performance data routing. It delivers a robust architecture that consolidates wired Ethernet and integrated 3G wireless capabilities, ensuring continuous WAN access while supporting advanced routing protocols, multi-protocol VPN services, and built-in firewall security.
Designed for demanding business environments, this router offers flexible power options via an AC power supply and features two 10/100 Ethernet ports providing dedicated LAN/WAN connectivity. With modular expansion through an EHWIC slot, integrated voice/video services, redundancy features for high availability, and QoS capabilities to ensure prioritized traffic, the C1921-3G-S-K9 is ideally suited to small enterprise and branch office use cases that require secure and reliable multi-service connectivity.
C1921-3G-S-K9 price is $1,038.00, a 48% saving from the Cisco list price of $1,995.00. C1921-3G-S-K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for C1921-3G-S-K9 for additional pricing. Browse the full Router Isr 1900 series or explore all Cisco products.
C1921-3G-S-K9 Specifications
- Product Type
- Enterprise Router
- VPN Support
- IPSec / SSL VPN / DMVPN
- Power Source
- AC Power Supply
- Routing Protocols
- OSPF / BGP / EIGRP / RIP / Static Routing
- Broadband
- 3G
- Architecture
- Fixed
- WAN Configuration
- WAN
- WAN Ports
- 1 WAN
- LAN Ports
- 2 LAN Ports
- Ethernet Technology
- 10/100
- Wi-Fi Standard
- N/A
- Connectivity Type
- Wired
- Network Protocols
- IPv4 / IPv6
- Remote Management
- CLI / SNMP / SSH
- Compliance Standards
- FCC / CE
- Wireless Support
- No
- Speed/Capacity
- Fast Ethernet
- Firewall Features
- Yes
- Features
- VPN / Firewall / IPv6 Compatible / Integrated Services
- Use Case
- Enterprise / Small Business
- Management
- Managed
- Form Factor
- Desktop / Rack-mount
- Integrated Services
- Voice / Video / WAN Optimization
- High Availability Support
- Supported
- Safety
- N/A
- EMC
- N/A
- Telecom
- N/A
- Throughput Capacity
- 100 Mbps
- QoS Features
- Supported
- Built-in Security Features
- Firewall / Intrusion Prevention
- Expansion Slots
- EHWIC
- Modular Slots Available
- 1 Slot
- Stacking Capability
- No
- 5G Support
- No
- Memory
- 256 MB
- Flash Memory
- 256 MB
- Interface Ports
- RJ-45
- Power
- 65 Watt
- Device Type
- Router
- Product Name
- Cisco 1921 Integrated Services Router (C1921-3G-S-K9)
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
C1921-3G-S-K9 Use Case
Reliable Retail Branch Office Connectivity with LTE Failover
In a national retail chain, remote stores deploy the C1921-3G-S-K9 Cisco 1900 Series Wireless WAN Bundle to maintain always-on connectivity. The integrated 3G cellular modem provides automatic LTE failover when primary links fail, securing POS transactions and inventory management. Benefit: uninterrupted operations, PCI-compliant data security, and enhanced customer experience.
Mobile Command Center Communications for Emergency Response
Public safety agencies leverage the C1921-3G-S-K9 Cisco 1900 Series Wireless WAN Bundle in mobile command vehicles at disaster sites. The router establishes secure VPN tunnels over 3G networks, enabling real-time video streaming, incident management dashboards, and interagency coordination. Benefit: high-availability communications, rapid deployment, and encrypted data exchange under critical conditions.
Industrial IoT Data Aggregation in Distributed Manufacturing
A manufacturing enterprise uses the C1921-3G-S-K9 Cisco 1900 Series Wireless WAN Bundle to connect remote production sites and IoT sensor networks. The device aggregates machine data over 3G links into a centralized analytics platform while enforcing firewall and QoS policies. Benefit: improved operational visibility, reduced latency, and simplified IoT infrastructure management.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 C1921-3G-S-K9 |  CISCO1941W-N/K9 |  C1921-3G-V-K9 |  C1941-SEC-SRE/K9 |  CISCO1941-HSEC+/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Fixed | Fixed | Fixed | Fixed |
| Broadband | 3G | N/A | 3G | N/A | N/A |
| Built-in Security Features | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention / Malware Protection | Firewall, Intrusion Prevention, Encryption | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention / Malware Protection |
| Compliance Standards | FCC / CE | FCC / CE | FCC, CE | FCC, CE | FCC / CE |
| Connectivity Type | Wired | Wired / Wireless | Wired | Wired | Wired / Ethernet |
| Depth | N/A | 9.4 inches | N/A | 12.3 inches | N/A |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | N/A | FCC, CE | N/A |
| Ethernet Technology | 10/100 | 10/100 | 10/100 Ethernet | 10/100 | 10/100 |
| Expansion Slots | EHWIC | EHWIC | EHWIC | EHWIC | EHWIC |
| Features | VPN / Firewall / IPv6 Compatible / Integrated Services | VPN / IPv6 Compatible / Firewall | VPN, IPv6 Compatible, Firewall, Encryption | VPN / IPv6 Compatible / Firewall / Syslog | VPN / Firewall / IPv6 Compatible |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 256 MB | 256 MB | 128 MB | 256 MB |
| Form Factor | Desktop / Rack-mount | Desktop | Desktop | Rack-mount | Desktop |
| Height | N/A | 1.7 inches | N/A | 1.73 inches | N/A |
| High Availability Support | Supported | Not Supported | Supported | Supported | Not Supported |
| Integrated Services | Voice / Video / WAN Optimization | Voice / Video | Voice, Video, WAN Optimization | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization |
| Interface Ports | RJ-45 | RJ-45 | RJ-45 | RJ-45 | RJ-45 |
| LAN Ports | 2 LAN Ports | 4 LAN Ports | 2 LAN Ports | 4 LAN Ports | Modular LAN |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 256 MB | 256 MB | 256 MB | 512 MB | 256 MB |
| Modular Slots Available | 1 Slot | 2 Slots | 2 Slots | 2 Slots | 2 Slots |
| Network Protocols | IPv4 / IPv6 | IPv4 / IPv6 | IPv4, IPv6 | IPv4, IPv6 | IP / TCP / UDP / OSPF / EIGRP / BGP / RIP / ICMP |
| Power | 65 Watt | 85W | 65 Watt | 50 W | 55W |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply / DC Power Supply | AC Power Supply |
| Product Name | Cisco 1921 Integrated Services Router (C1921-3G-S-K9) | Cisco 1941 Integrated Services Router with Wireless | Cisco 1921 Integrated Services Router 3G Voice | Cisco 1941 Security Services Router (C1941-SEC-SRE/K9) | CISCO1941-HSEC+/K9 |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | CLI / SNMP / SSH | SSH / Telnet / SNMP | SSH, Telnet, SNMP | SSH, Telnet, SNMP | CLI / SNMP / Telnet / SSH |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / BGP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing |
| Safety | N/A | N/A | N/A | UL/cUL | N/A |
| Speed/Capacity | Fast Ethernet | N/A | 100 Mbps | N/A | N/A |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | N/A | N/A | TIA/EIA | N/A |
| Throughput Capacity | 100 Mbps | 0.025 Gbps | 75 Mbps | 0.075 Gbps | 0.075 Gbps |
| Use Case | Enterprise / Small Business | Small Business | Business, Branch Office | Enterprise | Enterprise / Small Business |
| VPN Support | IPSec / SSL VPN / DMVPN | IPSec / DMVPN | IPSec / SSL VPN / DMVPN / FlexVPN | IPSec / SSL VPN / N/A / N/A / N/A / N/A | IPSec / SSL VPN / DMVPN |
| WAN Configuration | WAN | Dual WAN | WAN | Dual WAN | Dual WAN |
| WAN Ports | 1 WAN | 2 WAN | 2 WAN Ports | 2 WAN | 2 WAN |
| Weight | N/A | 8.8 lbs | N/A | 7 lbs | N/A |
| Wi-Fi Standard | N/A | WiFi 4 | N/A | N/A | N/A |
| Width | N/A | 8.3 inches | N/A | 17.5 inches | N/A |
| Wireless Support | No | Yes | No | No | No |
Reviews & Ratings
J
James Cooper
4
Perfect for remote offices with 3G connectivity. It works well and offers good performance for both WAN and failover.
D
David Harris
5
The 3G WAN connectivity is stable and the router has been reliable in our remote locations. No complaints so far.
R
Rebecca Adams
3
Solid 3G WAN solution for our branch offices. Provides stable, consistent service and simple configuration.
T
Thomas Reed
4
Dependable and easy to manage. Great choice for locations relying on 3G connectivity for backup WAN.
Questions & Answers
What is the Cisco 1900 Series Wireless WAN Bundle C1921-3G-S-K9?
The Cisco 1900 Series Wireless WAN Bundle C1921-3G-S-K9 is a modular branch router with embedded 3G WWAN, dual Gigabit Ethernet ports, and integrated Cisco IOS security services for secure, reliable WAN connectivity.
What key features does the C1921-3G-S-K9 offer?
The C1921-3G-S-K9 offers embedded HSPA+ 3G connectivity, modular WAN interface slots, IPsec VPN acceleration, Zone-Based Firewall, dual Gigabit Ethernet ports, and Cisco IOS SD-WAN readiness.
What are the hardware specifications of the Cisco C1921-3G-S-K9?
It includes a 1.2 GHz dual-core CPU, 256 MB DRAM, 64 MB Flash, one onboard 3G WWAN card slot, two integrated Gigabit Ethernet ports, and a console port.
Which wireless technologies does the Cisco C1921-3G-S-K9 support?
It supports 3G HSPA+ and HSUPA technologies with backward compatibility to GSM, GPRS, and EDGE networks for broad carrier interoperability.